You will enjoy 1 x 90 minutes session of pain free soprano xli laser hair removal during the 90 minutes you can request any area on your body to be treated with the laser the laser practitioner will be able to provide a realistic idea of how long it will take to treat requested areas but on average the duration is as follows full legs 90 minutes half legs including knee 60 minutes half legs excluding knee 45 minutes underarms 15 minutes bikini standard 30 minutes bra